Compare
AI companion apps, side by side.
Six apps, what each is actually for, and what they cost. Facts about other apps come from their own store listings and help pages, checked October 6, 2026. We have tried to be fair; each head-to-head says when the other app is the better pick.
What each one is for
Formii
One companion with mandatory flaws and a friction dial. Practice for real relationships
Formii vs Replika
A warm friend or partner with a 3D avatar, voice and selfies
Formii vs Nomi
Deep memory, several companions, group chats, voice and selfies
Formii vs Kindroid
Realistic companion with voice and video calls, selfies, web access
Formii vs Character.ai
A platform of user-made characters for roleplay and stories
Formii vs Chai
Chatting with and creating AI characters and stories on mobile
Side by side
Formii
- Free tier
- 20 messages a day, full builder, no card
- Paid
- Plus, planned at $11.99 a month or $69.99 a year. Not for sale yet
- Virtual currency
- None
- Disagrees with you
- Yes, by design; never zero
- Voice
- No
- Age
- 18+, date of birth required
Replika
- Free tier
- Chatting is free; Pro unlocks romance, voice, selfies
- Paid
- Pro. App Store lists monthly items at $7.99 and $14.99, yearly at $49.99 and $69.99; exact price shown in app
- Virtual currency
- Gems and coins
- Disagrees with you
- Rarely
- Voice
- Yes (Pro)
- Age
- Rated 18+
Nomi
- Free tier
- Free to start; message limit not stated on the listing
- Paid
- Standard $15.99 a month, $39.99 a quarter, $99.99 a year
- Virtual currency
- Nomi Credits
- Disagrees with you
- If you write them that way
- Voice
- Yes
- Age
- Rated 18+
Kindroid
- Free tier
- 50-message preview, then a 3-day trial that needs a card
- Paid
- $15.99 a month, $42.99 for 3 months, $159.99 a year; Ultra $28.99, MAX $68.99
- Virtual currency
- Selfie and audio credits
- Disagrees with you
- If you write them that way
- Voice
- Yes
- Age
- 18+
Character.ai
- Free tier
- Free with ads, basic memory, slower mode
- Paid
- c.ai+ $9.99 a month or $94.99 a year; Lite $4.99
- Virtual currency
- Charms
- Disagrees with you
- Depends on the character
- Voice
- Yes
- Age
- Rated 18+
Chai
- Free tier
- Daily allowance of 'pieces'; number not stated on the listing
- Paid
- Premium $13.99 a month or $134.99 a year; Ultra $29.99 a month
- Virtual currency
- Pieces
- Disagrees with you
- Depends on the character
- Voice
- No
- Age
- Rated 18+
| App | Free tier | Paid | Currency | Disagrees | Voice | Age |
|---|---|---|---|---|---|---|
| Formii | 20 messages a day, full builder, no card | Plus, planned at $11.99 a month or $69.99 a year. Not for sale yet | None | Yes, by design; never zero | No | 18+, date of birth required |
| Replika | Chatting is free; Pro unlocks romance, voice, selfies | Pro. App Store lists monthly items at $7.99 and $14.99, yearly at $49.99 and $69.99; exact price shown in app | Gems and coins | Rarely | Yes (Pro) | Rated 18+ |
| Nomi | Free to start; message limit not stated on the listing | Standard $15.99 a month, $39.99 a quarter, $99.99 a year | Nomi Credits | If you write them that way | Yes | Rated 18+ |
| Kindroid | 50-message preview, then a 3-day trial that needs a card | $15.99 a month, $42.99 for 3 months, $159.99 a year; Ultra $28.99, MAX $68.99 | Selfie and audio credits | If you write them that way | Yes | 18+ |
| Character.ai | Free with ads, basic memory, slower mode | c.ai+ $9.99 a month or $94.99 a year; Lite $4.99 | Charms | Depends on the character | Yes | Rated 18+ |
| Chai | Daily allowance of 'pieces'; number not stated on the listing | Premium $13.99 a month or $134.99 a year; Ultra $29.99 a month | Pieces | Depends on the character | No | Rated 18+ |
Other apps' details checked October 6, 2026 on their US App Store listings and help pages, linked from each head-to-head. Prices vary by country and store and change often, so check the app before you pay. Formii's own plans are on the pricing page; Plus is planned and not for sale yet. Each app's name is a trademark of its owner. Formii is not affiliated with any of them.
How to read this
These apps are not all trying to do the same thing. Character.ai and Chai are platforms of characters and stories. Replika, Nomi and Kindroid are companions in the full sense, with avatars, voices and selfies that Formii does not have yet. Formii does one thing none of them makes a setting: every companion has flaws you chose and a friction level you set, so your companion disagrees with you on purpose.
If you want an avatar, a voice, or several characters, one of the others is the better pick today, and the head-to-heads say so. If being agreed with has started to feel like talking to a mirror, Formii is the alternative built for that.
Two things to watch in any app: whether the free tier is a real product or a demo, and whether there is a virtual currency on top of the subscription. Both are covered in how much AI companion apps cost andwhat to look for in an AI companion app.
Build someone with edges.
Free to start. It takes about three minutes, and the flaws are not optional.